Valve anti-corrosion effective method

Valve corrosion and effective ways to solve: 1, the valve corrosion, usually understood as the valve metal material under the chemical or electrochemical environment under the damage. As corrosion occurs in the spontaneous interaction between metal and the surrounding environment, it is a common concern that how to separate the metal from the surrounding environment or to use more nonmetallic materials. 2, we all know, metal corrosion damage to the valve's duration, reliability and service life have a considerable impact. The effect of mechanical and corrosion factors on the metal greatly increases the total amount of contact surface wear. Valve in operation, the total amount of wear on the surface of the friction. During operation of the valve, the frictional surface is subject to wear and tear as a result of simultaneous mechanical action and chemical or electrochemical interaction of the metal with the environment. For valves, the climatic conditions of the pipeline work are complicated; the presence of hydrogen sulfide, carbon dioxide and certain organic acids in media such as oil, natural gas and formation water increases the destructive power of their metal surfaces and rapidly loses their ability to work. 3, due to the metal's chemical corrosion depends on the temperature, the mechanical load friction parts, lubricating materials contained in the sulfide and its acid stability and the duration of contact with the metal and the catalytic effect of metal on the nitriding process, corrosion and immersion Molecules of erosive substances on the metal conversion speed and so on. Therefore, the anticorrosion method (or measure) of metal valve and the application of synthetic material valve have become one of the topics of the valve industry research at present. Valve import pump industrial washing machine 4, the corrosion of metal valves, can be understood as coating on the metal valve to protect the corrosion protection layer (such as paint, paint, lubricants, etc.) so that the valve is in the manufacture, preservation , Transportation or in the process of its use are not subject to corrosion. 5, the metal valve anticorrosive method depends on the required protection period, transport and storage conditions, valve construction features and materials, of course, to consider the economic effect of lifting anti-corrosion. There are four main methods of anticorrosive metal valves and their parts: 1, the volatile anti-corrosion agent into the atmosphere of the steam (wrapped with a resistive paper, blowing air to suppress the passage of the product chamber, etc.). 2, using the resistance of water and alcohol solution. 3, the anti-corrosion (protection) material coated on the valve and its parts surface. 4, the resistance of the thin film or polymer coating on the valve and its parts surface. (Note: The current valve manufacturers, extensive use of lubricants and water resistance to dissolve the flow of anti-corrosion.) Keywords: valve

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